Three bipolar aerosol chargers, an AC-corona (Electrical Ionizer 1090, MSP Corp.), a soft X-ray (Advanced Aerosol Neutralizer 3087, TSI Inc.), and an α-radiation-based 241Am charger (tapcon & analysesysteme), were investigated on their charging performance of airborne nanoparticles. The charging probabilities for negatively and positively charged particles and the particle size conservation wer...

Abstract: The three-port converter has three H-bridge ports that can interface with three different energy sources and offers the advantages of flexible power transmission, galvanic isolation ability and high power density. The three-port full-bridge converter can be used in electric vehicles as a combined charger that consists of a battery charger and a DC-DC converter. Power transfer occurs b...

Various circuit technologies have been studied and developed. One of main streams concerns a soft switching technology to mitigate switching stress, leading to the reduction in switching losses or electro-magnetic noise. On the other hand, as a characterized orthodox technology, the existing chopper circuit is used for the electric vehicles, etc. Such technologies have a tendency to go out of v...

This system is designed for outdoor application in un-electrified remote rural areas. This system is an ideal application for house or village street lighting. The system is provided with battery storage backup sufficient to operate the light for 7-8 hours daily. The project is about to develop and fabricate the circuit that can charge the lead acid battery during day time by using solar as the...

Emergency l ight ing systems are frequently employed as a required safety feature within business premises. These systems comprise essentially of a control circuit, a battery pack, a trickle charging circuit, and either an in-built incandescent lamp, or an inverter that will allow the battery supply to drive the existing fluorescent tubes. It is the latter version, and the requisite DC-AC inver...

Solar power based helmet charger is a product developed by the author and his team that was funded twice by the Ministry of Research and Technology of Higher Education in 2013 and 2014 for „Karsa Cipta‟ (creative plan) program and „Kewirausahaan‟ (enterpreneurship) program, respectively. This product has participated in several scientific agendas such as conferences or contests from 2013 to 201...

with the Dustbuster Plus cordless vacuum. Since all of the modifications involve only the crevice tool. the vacuum can still be used in the laboratory for general cleanup as originally designed. The cost per aspirator, regardless of model type discussed, is approximately $35.00. This cost includes the total unit with the appropriate charger base, batteries, accessor.y attachments, etc. In summa...

In a modern small sized passenger car fitted with a common rail diesel engine, turbo-lag is an important factor which hampers its performance. This paper discusses the basics of turbo-charger and VGT and some of the methods employed to reduce the turbo-lag in CRDI diesel engine. A novel turbocharger concept, approach to design, the control strategy and advantages of the concept are explained.

The design and application of an electronically coupled super charger (ECSC), an automotive energy savings device, is reviewed and investigated. The concept is founded on the operational ideas of hybridelectric vehicles. ECSC extends these ideas to affect the thermodynamic principles of the internal combustion engine (ICE). The concepts and methods of design of ECSC as well as the technological...

Smart grid is defined as the overlaying of a unified communications and control system onto the existing power delivery infrastructure to provide the right information and the right entity at the right time. It helps even out demand spikes and uses resource mix more efficiently. It is a better integration, or “system balancing,” of variable resources, like wind power. Many of the advanced appli...